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经营范围
发明名称
Grubenstempel
摘要
申请公布号
DE1031242(B)
申请公布日期
1958.06.04
申请号
DE1954D018599
申请日期
1954.09.03
申请人
WILHELM DONATH
发明人
DONATH WILHELM
分类号
E21D15/32
主分类号
E21D15/32
代理机构
代理人
主权项
地址
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